A 360mm radiator bolted to a laptop trims temps and ups FPS

A hobbyist YouTuber known for extreme PC mods strapped a 360mm all-in-one (AIO) liquid cooler to a Metabox laptop and saw temperatures drop by about 60°C on both the CPU and GPU during tests. The project, built around an older Metabox P950EP laptop, used waterblocks, a separate water pump, and a radiator mounted behind the laptop screen. It’s a proof-of-concept that shows what a big cooling boost can do, but it’s far from plug-and-play.

The mod required some games of hardware Tetris: three-dimensional prints, epoxy, and a custom power setup. The radiator is mounted using 3D-printed holders and additional parts that press the new cooler against the laptop’s internals. A separate DC-DC converter powered the pump and fans, and a toggle switch lets the user turn the cooling on only when needed. The result in benchmarks: CPU and GPU temps stayed well below 40°C under load, compared with stock cooling where temperatures climbed higher. However, the setup isn’t without compromises.

The builder also had to swap in a larger water pump to push coolant through a second waterblock, which meant repurposing a standalone pump and adding extra thermal interfaces to keep temperatures even across components. RAM and VRMs got their own modest heat dissipation with a shared heatsink, held in place with epoxy and thermal pads. All of this required careful planning and a willingness to modify both the chassis and cooling path in ways most users would find risky or impractical.

So, what does this mean for ordinary laptop users? In practice, you’re unlikely to race out and replicate this mod. It’s a one-off experiment that highlights two things: first, that laptops can reach surprisingly high temperatures under load, and second, that aggressive cooling can improve sustained performance in theory. Real-world use, however, comes with downsides like voided warranties, added weight, potential leaks, and the chance of damaging components if things go wrong.